MX Verdict

com.mxverdict/mxverdictVersion 1.0.0

Free, read-only email and DNS checks: SPF, DKIM, DMARC, MX, DNS records, blocklists, domain health.

Status

Responds170 msNov 14, 2026, 14:07 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:07 UTC
Latency: 170 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://mxverdict.com/mcpResponds170 msNov 14, 2026, 14:07 UTC

No sign-in

Claude Code

claude mcp add --transport http mxverdict https://mxverdict.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: mxverdict
Remote MCP server URL: https://mxverdict.com/mcp

Cursor

{
  "mcpServers": {
    "mxverdict": {
      "url": "https://mxverdict.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"mxverdict","type":"http","url":"https://mxverdict.com/mcp"}'

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Tools

7 tools

Tools of MX Verdict
	Description		Read-only	Idempotent	Open world
`check_blacklist`Check whether an IP address or a domain is listed on public DNS blocklists (DNSBLs). A domain is checked on domain blocklists only; to check a mail server, give its IP address.	Check whether an IP address or a domain is listed on public DNS blocklists (DNSBLs). A domain is checked on domain blocklists only; to check a mail server, give its IP address.	No	Yes	Yes	Yes
`check_dkim`Check a domain's DKIM public keys in DNS. With a selector (the s= tag of a DKIM-Signature header), checks that selector's key; without one, probes common selector names. Finding no key on common names does not prove DKIM is missing: selectors cannot be listed from DNS.	Check a domain's DKIM public keys in DNS. With a selector (the s= tag of a DKIM-Signature header), checks that selector's key; without one, probes common selector names. Finding no key on common names does not prove DKIM is missing: selectors cannot be listed from DNS.	No	Yes	Yes	Yes
`check_dmarc`Check a domain's DMARC record: whether it exists and is valid, its policy (none, quarantine or reject), alignment, and where reports are sent.	Check a domain's DMARC record: whether it exists and is valid, its policy (none, quarantine or reject), alignment, and where reports are sent.	No	Yes	Yes	Yes
`check_email_domain`Check everything about a domain's email setup in one call: SPF, DMARC, MX, DKIM on common selectors, domain blocklists, MTA-STS, TLS-RPT and BIMI. Use it for a general question such as "is email set up correctly for example.com".	Check everything about a domain's email setup in one call: SPF, DMARC, MX, DKIM on common selectors, domain blocklists, MTA-STS, TLS-RPT and BIMI. Use it for a general question such as "is email set up correctly for example.com".	No	Yes	Yes	Yes
`check_spf`Check a domain's SPF record: whether it exists and is valid, how many of the 10 allowed DNS lookups it uses, and how its all mechanism treats mail from servers that are not listed.	Check a domain's SPF record: whether it exists and is valid, how many of the 10 allowed DNS lookups it uses, and how its all mechanism treats mail from servers that are not listed.	No	Yes	Yes	Yes
`dns_lookup`Look up DNS records of a name. Type ALL (the default) queries A, AAAA, CNAME, MX, NS, TXT, SOA and CAA; any single type can be asked for. An IP address gives its reverse DNS (PTR) lookup.	Look up DNS records of a name. Type ALL (the default) queries A, AAAA, CNAME, MX, NS, TXT, SOA and CAA; any single type can be asked for. An IP address gives its reverse DNS (PTR) lookup.	No	Yes	Yes	Yes
`lookup_mx`Look up a domain's MX records (its incoming mail servers), their IP addresses and reverse DNS. DNS only: it does not connect to the mail servers.	Look up a domain's MX records (its incoming mail servers), their IP addresses and reverse DNS. DNS only: it does not connect to the mail servers.	No	Yes	Yes	Yes

Details

Registry status: Active
Published: Sep 28, 2026
Updated: Sep 28, 2026
Website: https://mxverdict.com/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): SecuritySuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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